/**
 * 通用js方法封装处理
 */

// 日期格式化  lacus
export function parseTime(time, pattern) {
    if (arguments.length === 0 || !time) {
        return null;
    }
    const format = pattern || '{y}-{m}-{d} {h}:{i}:{s}';
    let date;
    if (typeof time === 'object') {
        date = time;
    } else {
        if (typeof time === 'string' && /^[0-9]+$/.test(time)) {
            time = parseInt(time);
        } else if (typeof time === 'string') {
            time = time
                .replace(new RegExp(/-/gm), '/')
                .replace('T', ' ')
                .replace(new RegExp(/\.[\d]{3}/gm), '');
        }
        if (typeof time === 'number' && time.toString().length === 10) {
            time *= 1000;
        }
        date = new Date(time);
    }
    const formatObj = {
        y: date.getFullYear(),
        m: date.getMonth() + 1,
        d: date.getDate(),
        h: date.getHours(),
        i: date.getMinutes(),
        s: date.getSeconds(),
        a: date.getDay(),
    };
    const timeStr = format.replace(/{(y|m|d|h|i|s|a)+}/g, (result, key) => {
        let value = formatObj[key];
        // Note: getDay() returns 0 on Sunday
        if (key === 'a') {
            return ['日', '一', '二', '三', '四', '五', '六'][value];
        }
        if (result.length > 0 && value < 10) {
            value = `0${value}`;
        }
        return value || 0;
    });
    return timeStr;
}

/**
 * @param {number} time
 * @param {string} option
 * @returns {string}
 */
export function getTimeDistance(time, option) {
    if (`${time}`.length === 10) {
        time = parseInt(time) * 1000;
    } else {
        time = +time;
    }
    const d = new Date(time);
    const now = Date.now();

    const diff = (now - d) / 1000;

    if (diff < 30) {
        return '刚刚';
    }
    if (diff < 3600) {
        // less 1 hour
        return `${Math.ceil(diff / 60)}分钟前`;
    }
    if (diff < 3600 * 24) {
        return `${Math.ceil(diff / 3600)}小时前`;
    }
    if (diff < 3600 * 24 * 2) {
        return '1天前';
    }
    if (option) {
        return parseTime(time, option);
    }
    return `${d.getMonth() + 1}月${d.getDate()}日${d.getHours()}时${d.getMinutes()}分`;
}

/**
 * 表格时间格式化
 */
export function formatDate(cellValue) {
    if (cellValue == null || cellValue == '') return '';
    const date = new Date(cellValue);
    const year = date.getFullYear();
    const month = date.getMonth() + 1 < 10 ? `0${date.getMonth() + 1}` : date.getMonth() + 1;
    const day = date.getDate() < 10 ? `0${date.getDate()}` : date.getDate();
    const hours = date.getHours() < 10 ? `0${date.getHours()}` : date.getHours();
    const minutes = date.getMinutes() < 10 ? `0${date.getMinutes()}` : date.getMinutes();
    const seconds = date.getSeconds() < 10 ? `0${date.getSeconds()}` : date.getSeconds();
    return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`;
}
